Petroleum drilling fluid separating sieve based on separating screening net slideways

A technology for oil drilling and screening nets, which is used in earth-moving drilling, flushing wells, wellbore/well components, etc. It can solve the problems of high energy consumption of filtering equipment, inconvenient operation, low screening efficiency, etc. Time saving, convenient replacement and cleaning, and the effect of improving filtration efficiency

Inactive Publication Date: 2015-05-13
CHENGDU KESHENG PETROLEUM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high energy consumption, low screening efficiency and inconvenient operation of the filtering equipment for drilling fluid solid phase control in the prior art, and to provide a petroleum drilling fluid based on the screen slideway that solves the above problems Separator

Method used

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  • Petroleum drilling fluid separating sieve based on separating screening net slideways
  • Petroleum drilling fluid separating sieve based on separating screening net slideways
  • Petroleum drilling fluid separating sieve based on separating screening net slideways

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The oil drilling fluid separation screen based on the screen slideway includes a filter cylinder 2 with a discharge port 1 at the bottom, and an upper screen 3 and a lower screen 4 arranged in the filter cylinder 2 .

[0034] Such as figure 1 with image 3 As shown, the filter cylinder 2 is composed of a base plate 21 with a discharge port 1, a support plate 22 whose bottom end is fixed on the base plate 21 and oppositely arranged, and is arranged on the base plate 21 to prevent oil drilling fluid from flowing out from the base plate 21 and Its top is lower than the coaming plate 23 of lower screening net 4 and forms.

[0035] The longitudinal section of the upper screen 3 is "U"-shaped, and rollers 5 are arranged on both sides of its top, and the top of the support plate 22 is provided with a slideway 6 that cooperates with the rollers 4, and is used to make the upper screen 3 A power device that moves horizontally with the lower screen 4 simultaneously.

[0036] In...

Embodiment 2

[0039] The difference between this embodiment and Embodiment 1 is that the structure of the lower screening net 4 is different in this embodiment, and the specific setting method is as follows:

[0040] The lower screening net 4 described in the present embodiment comprises a plate-shaped filter screen 41, two deflectors 42 whose bottom ends are fixed on the plate-shaped filter screen 41, and filter holes 43 arranged on the plate-shaped filter screen 41; The hole 43 is located between two deflectors 42, and the top of the deflector 42 extends into the support plate 22; as figure 2 shown.

Embodiment 3

[0042] The difference between this embodiment and Embodiment 2 lies in that in this embodiment, the connection mode between the plate filter 41 and the support plate 22 is optimized, and the type of power device is changed.

[0043] In this embodiment, the plate filter 41 is connected to the support plate 22 through a sliding connection 7 . The power device is a linear moving cylinder, and the linear moving shaft of the linear moving cylinder is provided with a connecting rod for connecting the upper screen 3 and the lower screen 4 .

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Abstract

The invention discloses a petroleum drilling fluid separating sieve based on separating screening net slideways. The petroleum drilling fluid separating sieve based on the separating screening net slideways mainly solves the problems that in the prior art, according to a filtering device for solid-phase control over drilling fluid, energy consumption is high, screening efficiency is low, and operation is quite inconvenient. The petroleum drilling fluid separating sieve based on the separating screening net slideways comprises a filtering cylinder body, an upper screening net and a lower screening net, wherein a discharge outlet is formed in the bottom end of the filtering cylinder body, the filtering cylinder body is provided with a base plate, supporting plates and a surrounding plate, the base plate is provided with the discharge outlet, the bottom ends of the supporting plates are fixed to the base plate, the supporting plates are arranged oppositely, the surrounding plate is arranged on the base plate and is used for preventing petroleum drilling fluid from flowing out from the base plate, the top end of the surrounding plate is lower than the lower screening net, the longitudinal section of the upper screening net is in a U shape, idler wheels are arranged on the two sides of the top end of the upper screening net, the slideways and power devices are arranged at the top ends of the supporting plates, the slideways are matched with idler wheels, and the power devices are used for making the upper screening net and the lower screening net move horizontally at the same time. The petroleum drilling fluid separating sieve based on the separating screening net slideways has the advantages that power consumption is low, the filtering effect is good, and both time and labor are saved when the separating sieve is cleaned.

Description

technical field [0001] The invention relates to a separation device, in particular to an oil drilling fluid separation screen based on a screen slideway. Background technique [0002] Drilling fluid is an indispensable and important part of oil drilling operations. On the one hand, it is related to safe, fast and high-quality drilling, and on the other hand, it is related to the protection of oil and gas layers. The role of drilling fluid in the drilling process can be summarized as: protecting the hole wall, balancing the formation soil pressure, cooling and lubricating the drilling tool, providing bottom-hole power, hydraulically crushing rock, and returning bottom-hole rock samples, etc. [0003] The drilling fluid specifies a series of drilling fluid performance parameters according to actual work needs, as the basis for adjusting and controlling the drilling fluid performance. The performance parameter of drilling fluid solid phase content is one of them. The solid pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/06
CPCE21B21/06
Inventor 贺昶明
Owner CHENGDU KESHENG PETROLEUM TECH
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